Unabridged: the thrill of (and threat to) the modern dictionary

Introduction: A part of a book or treatise preliminary to the main portion

Train: to teach so as to make fit, qualified, or proficient

2 History: a chronological record of significant events (such as those affecting a nation or institution), often including an explanation of their causes

3 Business: a usually commercial or mercantile activity engaged in as a means of livelihood

4 Define: to discover and establish the meaning of (something, such as a word)

5 Corpus: a collection of recorded utterances used as a basis for the descriptive analysis of a language

6 Neologism: a new word, usage, or expression

7 Slip: a small piece of paper

8 Collection: an accumulation of objects gathered for study, comparison, or exhibition, or as a hobby

9 Slur: an insulting or disparaging remark or innuendo

10 pronoun: any of a small set of words in a language that are used as substitutes for nouns or noun phrases

11 Entry: something entered: such as a word with its definition or identification

12 Social media: forms of electronic communication through which users create online communities to share information, ideas, personal messages, and other content

13 News: material reported in a newspaper or periodical news or on a newscast

14 Artificial intelligence: the capability of computer systems or algorithms to imitate intelligent human behavior

15 Future: time that is to come; what is going to happen

16 End: The point where something ceases to exist.